19877488

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73079}}^1$

素因数の和:73104

約数の個数: 20

約数和(自身を含む): 40778640

約数和(自身を除く): 20901152

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 73079, 146158, 292316, 584632, 1169264, 1242343, 2484686, 4969372, 9938744, 19877488]

約数ペア:

[(1, 19877488), (2, 9938744), (4, 4969372), (8, 2484686), (16, 1242343), (17, 1169264), (34, 584632), (68, 292316), (136, 146158), (272, 73079)]